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1. 发明专利

JP2004108343A Cooling device of internal combustion engine 有权
公开(公告)号：JP2004108343A
公开(公告)日：2004-04-08
申请号：JP2002275865
申请日：2002-09-20
申请人： Aisan Ind Co Ltd , Aisin Seiki Co Ltd , Toyota Motor Corp , アイシン精機株式会社 , トヨタ自動車株式会社 , 愛三工業株式会社
发明人： TAKAGI ISAO , TAKAGI NOBORU , KOBAYASHI WACHIO , YOSHIDA MASAZUMI , IMAIDA TAKASHI , KOBAYASHI MASAHIRO , YAMAMOTO DAISUKE
IPC分类号： F01P7/16
摘要： PROBLEM TO BE SOLVED: To improve warmup performance by minimizing a time required for an initialization specifying the full open position of a valve disk in a cooling device of an internal combustion engine having a flow control valve controlling the flow rate of engine cooling water passing a radiator and performing the initialization when the engine is started.
SOLUTION: This cooling device of the internal combustion engine 1 comprises the flow control valve 14 controlling the flow rate of the engine cooling water passing the radiator 12. An electronic control device 40 drivingly opens the flow control valve 14 based on specified drive instruction values until the displacement of the valve element of the flow control valve 14 is restricted by a stopper, and performs the initialization specifying the full open position thereof when the engine is started. In addition, the electronic control device 40 performs the initialization when the engine is stopped and, after the initialization, holds the valve element at the full open position.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004084615A Cooling device for internal combustion engine 有权
公开(公告)号：JP2004084615A
公开(公告)日：2004-03-18
申请号：JP2002249424
申请日：2002-08-28
申请人： Aisan Ind Co Ltd , Aisin Seiki Co Ltd , Toyota Motor Corp , アイシン精機株式会社 , トヨタ自動車株式会社 , 愛三工業株式会社
发明人： TAKAGI ISAO , TAKAGI NOBORU , SHINPO ZENICHI , YOSHIKAWA SHIGETAKA , YOSHIDA MASAZUMI , IMAIDA TAKASHI , KOBAYASHI MASAHIRO , YAMAMOTO DAISUKE
IPC分类号： F01P7/16
摘要： PROBLEM TO BE SOLVED: To provide a cooling device for an internal combustion engine, capable of restraining hunting of cooling water temperature in the internal combustion engine against a target cooling water temperature. SOLUTION: An electronic control unit (ECU) of the cooling device comprises steps of calculating: a cooling heat loss quantity eqw of an engine which is taken by the cooling water on the basis of an engine operating condition (step 400); calculates a required radiator flow rate ev2req(i) for making an engine outlet water temperature into a target engine outlet water temperature on the basis of the cooling heat loss quantity eqw, the target engine outlet water temperature and a radiator outlet water temperature (step 800); a feedback correction heat quantity eqwfb (i) for setting the engine outlet water temperature to the target engine outlet water temperature (step 500) to correct the cooling heat loss quantity eqw on the basis of a feedback correction heat quantity eqwfb (i) in calculating the required radiator flow rate ev2req (i). A flow control valve is controlled on the basis of the required radiator flow rate ev2req (i) (step 900, 1000). COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2006105106A Engine cooling system 审中-公开
标题翻译：发动机冷却系统
公开(公告)号：JP2006105106A
公开(公告)日：2006-04-20
申请号：JP2004296746
申请日：2004-10-08
申请人： Aisan Ind Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社
发明人： YAMAMOTO DAISUKE , TAKEUCHI KATSUNAO , MURAKAMI HIROMICHI , HANAI SHUICHI , SHINPO ZENICHI , YOSHIKAWA SHIGETAKA
IPC分类号： F01P7/16
摘要： PROBLEM TO BE SOLVED: To improve controllability of the cooling water temperature, by optimizing a conversion factor used for calculating a request radiator flow rate.
SOLUTION: This cooling system has cooling water circulating passages 12 and 15 of an engine 1, a radiator 13 in its circulating passages 12 and 15, and a flow control valve 16 for adjusting a cooling water flow rate of the radiator 13. An electronic control device ECU 30 calculates a cooling loss calorific value taken to cooling water from the engine 1 on the basis of an operation state of the engine 1. The ECU 30 controls the flow control valve 16 on the basis of its request radiator flow rate, by calculating the request radiator flow rate in the radiator 13 on the basis of the conversion factor for converting the cooling loss calorific value, the target cooling water temperature, the radiator outlet water temperature and the cooling water temperature into a flow rate for setting the cooling water temperature to the target cooling water temperature. Here, the ECU 30 calculates the conversion factor used for the calculation on the basis of a temperature difference between the engine outlet water temperature and the radiator outlet water temperature.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过优化用于计算请求散热器流量的转换因子来提高冷却水温度的可控性。解决方案：该冷却系统具有发动机1的冷却水循环通道12和15，其循环通道12和15中的散热器13，以及用于调节散热器13的冷却水流量的流量控制阀16。电子控制装置ECU30基于发动机1的运转状态，计算出来自发动机1的冷却水的冷却损失发热量。ECU30根据其要求的散热器流量来控制流量控制阀16 通过基于用于将冷却损失热值，目标冷却水温度，散热器出口水温和冷却水温度转换为转换系数的转换系数来计算散热器13中的请求散热器流量，设定为将冷却水温度降至目标冷却水温度。这里，ECU30基于发动机出口水温和散热器出口水温度之间的温差来计算用于计算的转换系数。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2006105104A Engine cooling system 审中-公开
标题翻译：发动机冷却系统
公开(公告)号：JP2006105104A
公开(公告)日：2006-04-20
申请号：JP2004296704
申请日：2004-10-08
申请人： Aisan Ind Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社
发明人： YAMAMOTO DAISUKE , TAKEUCHI KATSUNAO , MURAKAMI HIROMICHI , HANAI SHUICHI , SHINPO ZENICHI , YOSHIKAWA SHIGETAKA
IPC分类号： F01P7/16
摘要： PROBLEM TO BE SOLVED: To secure durability of a water pump, by restraining the occurrence of cavitation in the water pump.
SOLUTION: This cooling system 10 has cooling water circulating passages 11 and 12 of an engine 1, a radiator 13 in its circulating passages 11 and 12, the water pump 14 for forcibly feeding cooling water by the cooling water circulating passages 11 and 12, and a flow control valve 16 for adjusting a cooling water flow rate of the radiator 13. An electronic control device ECU 30 controls the flow control valve 16 for fully closing so as to cut off a cooling water flow of the cooling water circulating passages 11 and 12 when warming up the engine 1. Here, the ECU 30 controls valve opening of the flow control valve 16 to the opening side a little from full closure for allowing the cooling water flow when an engine speed exceeds a predetermined reference engine speed (5,000 rpm) in a state of cutting off the cooling water flow in the cooling water circulating passages 11 and 12 when the flow control valve 16 is fully closed.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过抑制水泵中的空化现象，确保水泵的耐久性。解决方案：该冷却系统10具有发动机1的冷却水循环通道11和12，循环通道11和12中的散热器13，用于通过冷却水循环通道11强制供给冷却水的水泵14和 12，以及用于调节散热器13的冷却水流量的流量控制阀16.电子控制装置ECU30控制流量控制阀16完全关闭，以切断冷却水循环通道的冷却水流此时，ECU30控制阀30从开闭侧向开口侧开阀一点，从而在发动机转速超过规定的基准发动机转速时允许冷却水流动当流量控制阀16完全关闭时，切断冷却水循环通道11和12中的冷却水流的状态。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2006105093A Engine cooling system 审中-公开
标题翻译：发动机冷却系统
公开(公告)号：JP2006105093A
公开(公告)日：2006-04-20
申请号：JP2004296488
申请日：2004-10-08
申请人： Aisan Ind Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社
发明人： YAMAMOTO DAISUKE , TAKEUCHI KATSUNAO , MURAKAMI HIROMICHI , SHINPO ZENICHI , YOSHIKAWA SHIGETAKA
IPC分类号： F01P7/16 , F01P3/20
摘要： PROBLEM TO BE SOLVED: To cope with viscosity reduction and pressure reduction in a working fluid, by restraining a temperature rise in the working fluid in an ancillary device without deteriorating fuel economy of an engine. SOLUTION: This cooling system has cooling water circulating passages 12 and 15 of the engine 1, a radiator 13 arranged in its circulating passages 12 and 15, and a flow control valve 16 for adjusting a cooling water flow rate in the radiator 13. An electronic control device ECU 30 controls the flow control valve 16 so that the cooling water temperature of the engine 1 becomes the target cooling water temperature. Here, the engine 1 is provided with a lubricating device 44 and an automatic transmission 45 including lubricating oil and a hydraulic fluid having thermal influence from the engine 1. An oil cooler circuit 35 is arranged in the circulating passages 12 and 15 so as to bypass the radiator 13 for cooling the lubricating oil and the hydraulic fluid. When the temperature of the lubricating oil and AFT exceeds the reference temperature, the ECU 30 changes the target cooling water temperature to the relatively low temperature. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过抑制辅助装置中的工作流体的温度升高来应对工作流体中的粘度降低和减压，而不会降低发动机的燃油经济性。解决方案：该冷却系统具有发动机1的冷却水循环通道12和15，布置在其循环通道12和15中的散热器13和用于调节散热器13中的冷却水流量的流量控制阀16 电子控制装置ECU30控制流量控制阀16，使发动机1的冷却水温度成为目标冷却水温度。这里，发动机1设置有润滑装置44和包括润滑油和来自发动机1的热影响的液压流体的自动变速器45.在循环通道12和15中布置油冷却器回路35，以便绕过用于冷却润滑油和液压流体的散热器13。当润滑油和AFT的温度超过参考温度时，ECU30将目标冷却水温度改变到相对低的温度。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004278345A Vehicular engine exhaust heat using device 审中-公开
公开(公告)号：JP2004278345A
公开(公告)日：2004-10-07
申请号：JP2003067988
申请日：2003-03-13
申请人： Aisan Ind Co Ltd , Sango Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社 , 株式会社三五
发明人： YAMAMOTO DAISUKE , TAKEUCHI KATSUNAO , NAKADA TAKAYOSHI , HASE SHUICHI
IPC分类号： F01N5/02 , F16H57/04
CPC分类号： F16H57/0413 , F28D1/06 , F28D7/08 , F28D7/16 , F28D20/00 , F28D21/0003
摘要： PROBLEM TO BE SOLVED: To early reduce friction of a device by efficiently warming up the motive power transmission device from engine starting time.
SOLUTION: An automobile 1 is mounted with an A/T 4 for transmitting output of an engine 2 to a wheel 3, a shaft 5, and a rear differential gear 6. This engine exhaust heat using device has a heat exchanger 20 for exchanging heat between exhaust gas of the engine 2 and circulating water, a circulating circuit 24 for circulating the circulating water for exchanging heat by the heat exchanger 20, a heat accumulating tank 25 for accumulating heat of the circulating water by the circulating circuit 24, a motor-driven pump 26 for imparting a flow to the circulating water by the circulating circuit 24, and thermal contact of a part of the circulating circuit 24 with the rear differential gear 6, and is constituted so as to warm up the rear differential gear 6 by the circulating water flowing out of the heat accumulating tank 25 by circulating the circulating water by the motor-driven pump 26 in the circulating circuit 24.
COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2004270487A Device for using exhaust heat of engine 审中-公开
公开(公告)号：JP2004270487A
公开(公告)日：2004-09-30
申请号：JP2003059716
申请日：2003-03-06
申请人： Aisan Ind Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社
发明人： TAKEUCHI KATSUNAO , YAMAMOTO SHOICHI , YAMAMOTO DAISUKE , NAKADA TAKAYOSHI
IPC分类号： F01N5/02
CPC分类号： Y02T10/16
摘要： PROBLEM TO BE SOLVED: To effectively reduce emission of engine exhaust gas by promoting warming-up from the engine starting.
SOLUTION: The exhaust heat using device comprises a heat exchanger 18 for carrying out heat exchange between the engine exhaust gas and water, a first circulating circuit 22 for circulating the heat-exchanged water, a heat storage tank 23 for storing the heat of the water, an electric pump 24, and heat pipes 29, 30 for heat contacting with the water. The water is circulated in the first circulating circuit 22 by the electric pump 24 for warming the heat pipes 29, 30 and using the exhaust heat. The device also comprises a water jacket 5 for circulating the water, a second circulating circuit 34 for circulating the water into the jacket 5 so as to supply the heat stored in the heat storage tank 23 to the jacket 5, valves 28, 10, 25 for switching the water circulation from the first circulating circuit 22 to the second circulating circuit 34, and a controller 40.
COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2003083064A Cooling device for internal combustion engine 有权
标题翻译：内燃机用冷却装置
公开(公告)号：JP2003083064A
公开(公告)日：2003-03-19
申请号：JP2001272998
申请日：2001-09-10
申请人： Aisan Ind Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社
发明人： YOSHIKAWA SHIGETAKA , SHINPO ZENICHI , TAKAGI ISAO , YAMAMOTO DAISUKE , MURAKAMI HIROMICHI
IPC分类号： F01P7/14 , F01P7/16
CPC分类号： F01P7/167 , F01P2007/146 , F01P2025/30 , F01P2025/32 , F01P2025/36 , F01P2025/64
摘要： PROBLEM TO BE SOLVED: To provide a cooling device for an internal combustion engine capable of suppressing the reduction of controllability when controlling a temperature of cooling water to a target value during feedback control of a flow rate control valve.
SOLUTION: During the feedback control of the flow rate control valve 7, lower limit guard is performed concerning a degree of opening of the valve 7. Consequently, the adjustment of degree of opening of the flow rate control valve 7 is not performed in an opening degree region in the vicinity of full closing where change of a water temperature at an engine exit becomes excessively great or little for change of degree of opening. Moreover, when the tendency of the water temperature at the engine exit is inverted between ascent tendency and descent tendency during the feedback control, a degree of opening of the flow rate control valve 7 is changed by a skip amount S so that water temperature at the engine exit approaches the target value.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种用于在流量控制阀的反馈控制期间将冷却水的温度控制到目标值时能够抑制可控性降低的内燃机的冷却装置。解决方案：在流量控制阀7的反馈控制期间，关于阀7的打开程度执行下限保护。因此，在开口中不执行调节流量控制阀7的打开程度在发动机出口处的水温的变化变得过大或变小的开闭附近的全关闭附近的度区域。此外，当在反馈控制期间在发动机出口处的水温度在上升趋势和下降趋势之间反转的趋势时，流量控制阀7的打开程度改变跳跃量S，使得在发动机出口接近目标值。

9. 发明专利

JP2006112233A Engine cooling system 审中-公开
标题翻译：发动机冷却系统
公开(公告)号：JP2006112233A
公开(公告)日：2006-04-27
申请号：JP2004297287
申请日：2004-10-12
申请人： Aisan Ind Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社
发明人： YAMAMOTO DAISUKE , TAKEUCHI KATSUNAO , MURAKAMI HIROMICHI , YOSHIKAWA SHIGETAKA , SHINPO ZENICHI
IPC分类号： F01P7/16
摘要： PROBLEM TO BE SOLVED: To improve controllability of the cooling water temperature in engine transition operation, in a cooling system for controlling the cooling water temperature on the basis of a cooling loss calorific value calculated in response to an operation state of an engine. SOLUTION: An electronic control device ECU 30 controls a flow control valve 16 for setting the engine outlet water temperature TO to the target engine outlet water temperature Tt on the basis of the cooling loss calorific value QW of an engine body 2 calculated from the operation state of the engine 1. Here, ECU 30 sets a moderated engine speed NEsm and a moderated engine load LEsm by performing moderating control on an engine speed NE and an engine load LE used for calculating the cooling loss calorific value QW for reflecting a changing delay in an actual cooling loss calorific value to a change in the calculated cooling loss calorific value QW in control of the flow control valve 16 in the transition operation of the engine 1. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提高发动机转换操作中的冷却水温度的控制性，基于根据发动机的运转状态计算的冷却损失发热量来控制冷却水温度的冷却系统。解决方案：电子控制装置ECU30根据发动机主体2的冷却损失发热量QW，将发动机出口水温TO设定为目标发动机出口水温Tt，控制流量控制阀16，发动机1的运转状态。这里，ECU30通过对发动机转速NE的调节控制和用于计算冷却损失发热量QW的发动机负荷LE来设定调节后的发动机转速NEsm和调节后的发动机负荷LEsm，在发动机1的过渡操作中控制流量控制阀16时，将实际的冷却损失热值的延迟改变为计算出的冷却损失发热量QW的变化。（C）2006，JPO＆NCIPI

10. 发明专利

JP2006112344A Engine cooling system 审中-公开
标题翻译：发动机冷却系统
公开(公告)号：JP2006112344A
公开(公告)日：2006-04-27
申请号：JP2004301401
申请日：2004-10-15
申请人： Aisan Ind Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社
发明人： YAMAMOTO DAISUKE , TAKEUCHI KATSUNAO , MURAKAMI HIROMICHI , YOSHIKAWA SHIGETAKA , SHINPO ZENICHI
IPC分类号： F01P7/16
摘要： PROBLEM TO BE SOLVED: To improve controllability of the cooling water temperature, by heightening the target cooling water temperature without reducing knocking resistant performance of an engine, in a cooling system for controlling the cooling water temperature of the engine at the target cooling water temperature.
SOLUTION: This cooling system has cooling water circulating passages 11 and 12 for circulating cooling water of the engine 1, a radiator 13 arranged in the cooling water circulating passages 11 and 12, and a flow control valve 16 for adjusting a cooling water flow rate passing through the radiator 13. An electronic control device ECU 30 controls the flow control valve 16 so that the cooling water temperature TO of the engine 1 becomes the target cooling water temperature Tt. Here, the ECU 30 sets the target cooling water temperature Tt in response to the intake temperature THIA, and actually, sets the target cooling water temperature Tt to the relatively high temperature when the intake temperature THIA is relatively low, and sets the target cooling water temperature Tt to the relatively low temperature when the intake temperature THIA is relatively high.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提高冷却水温度的可控性，通过提高目标冷却水温度，而不降低发动机的耐爆击性能，在用于控制目标冷却时发动机的冷却水温度的冷却系统中水温。解决方案：该冷却系统具有用于使发动机1的冷却水循环的冷却水循环通道11和12，布置在冷却水循环通道11和12中的散热器13和用于调节冷却水的流量控制阀16 通过散热器13的流量。电子控制装置ECU30控制流量控制阀16，使得发动机1的冷却水温度TO成为目标冷却水温度Tt。这里，ECU30根据进气温度THIA设定目标冷却水温度Tt，实际上，当进气温度THIA相对较低时，将目标冷却水温度Tt设定为相对高的温度，并将目标冷却水当进气温度THIA相对较高时，温度Tt达到相对较低的温度。版权所有（C）2006，JPO＆NCIPI

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